Draftsman&#39;s printing-machine.



, PATENTED JAN. 31; 1905.

3 SHEETS-SHEET -1.

Fig. 1.

' Attorneys.

Inventor:

A. J. BRADLEY. DRAFTSMANS PRINTING MACHINE. APPLICATION FILED MAE.2,1904.

,Nb. 781,125. I PATENTED JAN, 31, 1905.

- 'A. J. BRADLEY.

DRAFTSMANS PRINTING MACHINE. nrmom ox mm HAR.2,1904.

, 3 SHEETS-SHEET 2.

v in; s sen j I v lnvantofz M j? M mmr'xiey I No.781,125. H I I PATENTED JAN. 31,1905.

A. L RADLEY. V v DRAFTSMANS PRINTING MACHINE.

APRLIGATION FILED MAR.2,1904.

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Witnesses:

'- a flat slotted plate having ears 2 at each cor- U ITED STATES Patented January 31, 1905.

ANDREW J. BRADLEY, OF NEW YORK, N. Y.

DRAFTSMANS PRINTING-MACHINE,

' SPECIFICATION forming part of Letters Patent No. 781,125, dated. January 31, 1905.

\ Application filed March 2, 1904. Serial No. 196,136.

T0 @ZZ. whom, it may concern:

simple and compact machine for lettering on drawings, tracings, maps, blue-prints, and the like; to provide a printing-machine that will automatically move forward one space after each printing stroke; to provide an indicator having a smaller angular movement than the type-wheel; to adjust thetransmission-train between the indicator and the type-wheel; to provide manually-operable means to hold the type-wheel in any given position of adjustment and arranged to be operated in grasping the indicator; to ,provide for the free removal of'the type-tire; to adjust the spacing to correspond with the size of'the type used;v to improve the alinement of the work produced by such machine, and other objects hereinafter more fully appearing.

My invention consists in the parts and in the arrangementsand combinations of parts hereinafter'described and claimed.

In the accompanying drawings, forming a part of this specification, and wherein like symbols refer to like parts wherever they occur, Figure 1 is aside view of my improved printing-machine. Fig; 2 is a side view of the machine when the type-wheel is at the bottom of the printing stroke. Fig. 3 is a top sectional view on the line 3 3 of Fig. 4. Fig. 4 is a vertical sectional view on the line 4 4 of Fig.

tion.

lever.

The base 1 of the machine is substantially ner, containing'bearings. Shafts 3 4 are journaled in the said bearings on the base, and' each shaft is equipped with wheels 5 6, pro' vided with rubber tires? to secure proper frictional engagement with the surface upon which the machine rests. The wheels 6 have inwardly-projecting cylindrical portions 8, provided with peripheral grooves 9. A T- section guide-bar 10 is provided, which may A shield 13, having a plurality of openings 14 of varying sizes, is-secured to the rear central portion of the base by means of a screw 15.

The base 1 hasa rear extension 16 in proximity to one of the wheels 5. A pin 17 is secured in ears 18, projecting upwardly from the extension. ing of springwire rebent upon itself, is secured upon the pin 17 by having each of its parallel portions bent around .the pin. The

vA springbrake 19, consistfree ends'of the spring rest upon the extension, and the U -shaped end rests upon the wheel 5. This brake offers a considerable re- 8181331100110 rearward movement of the machine, but slight reslstance to forward move-v ment thereof.

-A lever 20 is pivoted upon the rear shaft 3. This lever hasa downwardly-extending bifurcated portion 21,the bifurcations having bearings through which the shaft extends. Intermediate of the bifurcations it has an upwardly-extending projection 22, the rear face of which has a curved contour. At the opposite end of the lever is a similar projection 23, its forward face having a curved contour. At the extreme upper end of the projection 23 is a handle 24. The central portion of the lever is offset and thickened and is provided with an upwardly-extending projection 25. The offset portion is pierced by acentral hole 26, and the projection is provided with a slot. 27. symmetrically arranged with respect to the hole 26 are two downwardly-extending:-

L-shaped brackets 28 29, the 'horizontalpor.--

tions of which are provided with screwthreaded holes. To the left of the hole 26 is l an enlargement 80, provided with a slot 31. This lever is the support for the type-carrying member and the actuating-lever of the machine.

The features above described are integral.

A stud-journal 32 is mounted in the hole 26 in the lever 20. It is screw-threaded at its front end and isprovided with a shoulder 33, so that it may be tightly secured in the lever by means of the nut 34 without clamping the wheel mounted back of the lever. At its opposite end it is provided with a peripheral projection 35 and is screw-threaded beyond said projection. The securing nut 36 and its .washer abut against this peripheral projection, and clamping of the wheel is prevented.

A pulley 37 is mounted on the stud-journal 32. The said pulley has a reduced rear extension 38, to which a type-carrying wheel 39 is secured by means of a feather 40. The pulleyhas a recess 41 at its forward end, the rear wall of which is pierced by a screw-threaded hole in which a screw 42 is mounted.

The type-wheel 89 is provided with a removable type-tire 48, held in place by pins 44 in the rim of the wheel. The pins are forced outwardly by springs 45 and project into recesses in the inside of the tire. This construction is the'same as that described in my copending application filed November 10, 1903, Serial No. 180,501, to which reference is made for-a detailed description. Any number of interchangeable type-tires having type of different sizes and styles may be provided for each machine. I

A dial-frame 46 is mounted on the lever 20. The dial-frame is the major segment of a circle, the middle portion of the lower side having a reentrant portion to permit the frame to be seated over the middle portion of the lever 20. At either side the dial-frame 46 rests upon screws 47 48 in the brackets 28 29 on the lever 20. A bolt 49, screw-threaded at its front end and provided with an intermediate shoulder 50 and a shoulder 51 at its rear end, serves the double purpose of a bolt and a stud-journal. It passes through a hole in the dial-frame and through the slot 27 in the projection 25 on the lever 20. By means of the screws 47 48 the dial-frame may be vertically adjusted, the nut 52 on the bolt 49 be inglooseneol during the adjustment and tightened up afterward. Screws 53 54, passing through slots in the dial-frame and into tapped holes 55 56 in the lever 20, secure the lower portion of the dial-frame. A dial-face 57, of celluloid, sheet metal, or other suitable material, is secured to the dial-frame and is provided with characters corresponding to the characters on the type-wheel. A rim 58, provided with notches 59 on its rear edge, is secured to the periphery of the dial-frame by screws.

An indicator-arm 60 is pivoted upon the bolt 49 just back of the shoulder 56, and a pulley 61 is mounted on the bolt between the indicator-arm and the shoulder 51. The indicator-arm and pulley are secured together by screws 62, so that they move together. A belt 63, which may be round, as shown, or flat and of any suitable material, is secured at its ends to one of the screws 62, passing into a recess in the pulley through which the screw passes. The intermediate portion of the belt passes around the pulley 61 and is crossed and passes around the pulley 37, being secured at one point to the latter pulley by passing into the recess 41 under the screw 42. The belt being secured to both pulleys, slip relative to either is prevented. The pulley 37 is smaller than the pulley 61. Hence it will be unnecessary for the latter pulley to make a complete rotation to cause a complete rotation of the former pulley. The belt 63 maybe tightened or slackened by the vertical adjustment of the dial-frame 46, described above. The indicator -arm 60 extends upwardly back of the dial and has a forwardlyextending portion 64 near its upper end, to which an indicator 65 is secured in convenient proximity to the characters on the dial. The indicator-arm is slotted throughouta portion of its length. A spring 66 is secured to the indicator-arm below the slot and extends upwardly into the slot and over the forwardlyextending portion 64. A detent 67 is secured to the spring 66 in position to engage the notched rim 58, and thus hold the indicatorarm and connected parts in any desired position of adjustment. The upper extremity of the spring is so located that in grasping the indicator-arm to move it to a new position the spring will be moved backwardly and the detent 67 will be moved out of its engagement with the notched rim, and, on the other hand, when the indicator-arm is released from the grasp of the operator the detent will be carried forward into engagement with the notched rim.

Inking-rollers 68 69 are mounted on the lever 20 by means of bails 7O 71, which rest in grooves 72 73. Springs 74 75 are secured to the lever in position to bear upon the said bails and hold the inking-rollers in engagement with the type-wheel.

A ratchet-wheel 76 is made integral with one of the wheels 6. On the shaft to which the wheel 6 is attached a feed-lever 77 is pivoted. The feed lever is substantially L- shaped and is pivoted at the extremity of its shorter arm. Approximately at its angle a pawl 78 is pivoted. A spring 79 is rigidly attached to the pawl and rests under a pin 80 on the lever. The pawl is thus always held in contact with the ratchet-wheel. The longer arm of the lever is provided with a slot 81. A link 82 is pivoted upon the screw 54 at one end and is pivoted to the longer arm of the lever at its other end by means of a bolt 83,

upon which a winged nut 8 1 works. The bolt 83 may be moved to any portion of the slot and secured there by means of the winged nut. The feed is thus adjustable. The move-- ment of the lever 20 for all the printing strokes is uniform. Hence the amount the feed mechanismmoves the'machine is dependent upon the point of the feed-lever 77 to which the link 82 is connected. A scale 85 is provided on the feed-lever to indicate the proper adjustment for the particular size of type upon the type-wheel.

A bolt 86 is mounted in the base and extends upwardly through the slot 31 in the lever 20, terminating in a screw-threaded end. v Nuts 87 88 are screwed on the rod above the lever 20 and limit the upward movement of the latter. A spring 89 surrounds the bolt 86 and bears at one end upon the base and at the.

a the parts to their uppermost position after being depressed and to feed the machine forward.

The frame is so constructed that when the parts are in the position shown in Fig. 1 there are no obstructions back of the typewheel to interfere with the removal and replacement of the type-tire.

Obviously my machine admits of considerable modification within the scope of my invention, and therefore 1 do not wish to be limited to the specific construction shown and described. For example, instead of the belt-andpulley transmission between the indicatingarm and type-wheela gear-train may be substituted, as illustrated in Fig. 6. The gearwheel 90 takes the place of the pulley 37, and the gear-wheel 91 takes the place of the pulley 61. 7

What I claim as my invention, and desire to secure by Letters Patent, is

1. A printing-machine comprising a rollersupported base, a type carrier pivotally mounted on said base, a feed-lever operatively' connected to a roller of said base, and a member connecting said feed-lever with said typecarrier and adjustably connected with one of said parts.

2. A printing-machine comprising a rollersupported base, a type carrier pivotally mounted on said base, a feed-lever operatively connected to a roller of said base, and a member pivotally connected with said type-carrier and adjustably connected with said feedlever.

3. A printing-machine comprising a base, an actuating-lever provided with verticallyadjustable supports, an upwardly-extending slotted projection between said supports, a

dial-frame resting upon said supports, and means connecting said dial-frame with said slotted projection.

4. A printing-machine comprising a base, an actuating-lever provided with integral downwardly-extending brackets and an upwardly-extending slotted projection between said brackets, vertically-adjustable members mounted in said brackets, a dial-frame resting upon said members, and means connecting said dial-frame with said slotted projection.

5. A printing-machine comprising a movable base, a type-carrier pivotally mounted on said base, a feed-lever pivoted on said base, and means adjustably connecting said typecarrier and said feed-lever, said feed-lever being provided with an adjustment-scale.

6. A printing-machine comprising a base, an actuating-lever pivotally mounted on said base, an adjustable type-carrier mounted on said lever, a dial on said lever, an indicator arranged to cooperate with said dial, a flexible connection between said indicator and said type-carrier, and means for adjusting the tension upon said flexible connection.

7. A printing-machine comprising a base, an actuating-lever pivotally mounted on said base, an adjustable type-carrier and a dial mounted on said lever, an indicator arranged to cooperate with said dial, a pulley arranged to move with said indicator, a smaller pulley arranged to move with ,said type-carrier, a flexible belt connecting said pulleys, and {neans to adjust the distance between said puleys.

8. A printing-machine comprising a base, an actuating-lever pivotally mounted on said base,a dial-frame adjustably mounted on said lever, anindicator pivotally mounted on said dial-frame, an adjustable type-carrier mounted on said lever, a pulley arranged to move with said indicator, a smaller pulley arranged to move with said type-carrier, and a flexible belt connecting said pulleys.

9. A printing-machine comprising a rollersupported base, a type carrier pivotally mounted on said base, a feed-lever operatively connected to a roller of said base, and provided with a slot, and a member connecting said type-carrier with saidfeed-lever'an'd adjustably engaging said slot.

10. A printing-machine comprising a rollersupported base. a typecarrier pivotally ally connected with said type-carrier at one I end and adjustably connected with the slotted portion of said lever.

12. A printing-machine comprising a base, rollers therefor, the rollers upon one side of said base being provided with annular grooves, and a guide adapted for temporary attachment to a drawing-board and provided with a vertical rib adapted to engage said grooves.

13. A printing-machine comprising a base, an actuating-lever pivotally mounted on said base, a type-carrier pivotally mounted on said actuating-lever, grooves in the end faces of said lever, bails mounted in said grooves, inkrollers in said bails, and spring members secured to said lever, extending over said grooves and bearing upon said bail to yieldingly hold said ink-roller in contact with said type-carrier.

14. A printing-machine comprising a base, an actuating-lever pivotally mounted on said base, a type-carrier pivotally mounted on said actuating-lever, and a bail detachably mounted upon said lever, and an ink-roller mounted in said bail and held thereby in position to bear upon said type-carrier.

15. A printing-machine comprising a dialframe, a strip provided with notches in one edge secured to the periphery of said frame with its notched edge projecting thereover, and an indicator-arm provided with a detent arranged to engage said rim.

16. A printing-machine comprising a base, a dial frame provided with peripheral notches, an indicator-arm, a spring member mounted on said indicator-arm and having a grasping portion, said graspingportion arranged to be depressed in grasping said indicator-arm, and a detent on said spring member arranged to engage said notches.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ANDREVV J. BRADLEY.

In presence ot'- HENRY H. HENDRICK, WM. RoToHFoRD. 

